Lifting device



FIG. 1 is an isometric view of a lifting device, showing our new design;

FIG. 2 is a top plan view of the lifting device;

FIG. 3 is a bottom plan view of the lifting device;

FIG. 4 is a right side view of the lifting device;

FIG. 5 is a left side view of the lifting device;

FIG. 6 is a front view of the lifting device; and,

FIG. 7 is a rear view of the lifting device.

The broken lines shown in the figures are for the purpose of illustrating portions of the lifting device and form no part of the claimed design. 

CLAIM The ornamental design for a lifting device, as shown and described. 